Exercise and Health The Circulatory System. Blood circulates to every cell in the body. The...
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Transcript of Exercise and Health The Circulatory System. Blood circulates to every cell in the body. The...
Exercise and Health
The Circulatory System
The Circulatory System
Blood circulates to every cell in the body.
The following diagram shows the main blood vessels and explains how blood circulates to all parts of the body.
head and arms
head and arms
pulmonary artery
head and arms
pulmonary artery pulmonary vein
head and arms
pulmonary artery pulmonary veinlungs
head and arms
pulmonary artery pulmonary veinlungs
vena cave
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
renal arteryrenal vein
head and arms
pulmonary artery pulmonary veinlungs
vena caveaorta
liver
hepatic artery
hepatic vein
digestive system
hepatic portal vein
kidneys
renal arteryrenal vein
legs
Blood
Red cells
Red cells
Do not have a nucleus Biconcave discs Contain the chemical
haemoglobin. Haemoglobin carries
oxygen around the body.
At the centre of the haemoglobin molecule is an iron atom.
air sac in the lung
air sac in the lung
oxygen
air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
oxygen diffuses into the cells of the body
oxygen is used for respiration
air sac in the lung
oxygen
1 as blood flows through the lungs the haemoglobin in the red cells picks up oxygen
2 Haemoglobin and oxygen join to make oxyhaemoglobin
3 when the blood flows past cells with very little oxygen in them the oxyhaemoglobin breaks down
oxygen diffuses into the cells of the body
oxygen is used for respiration
4 the haemoglobin in the red cells goes back to the lungs to pick up more oxygen
Functions of the blood
Oxygen is carried in the red cells
Carbon dioxide is carried in the plasma
Functions of the blood
digested foods are carried in the plasma
Functions of the blood
Urea (waste substance) is carried in the plasma from the liver to the kidneys
Functions of the blood
Hormones are carried in the plasma
Functions of the blood
Heat is carried in the blood
BIOLOGY TEXT
Read p26-27 and answer question 1 off p27